Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 22, Pages 11229-11235Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta02968c
Keywords
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Funding
- National Natural Science Foundation of China [21571145, 21633008]
- Creative Research Groups of Hubei Province [2014CFA007]
- Fundamental Research Funds for the Central Universities
- Large-scale Instrument and Equipment Sharing Foundation of Wuhan University
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Developing low-cost, highly efficient, and superior stable electrocatalysts for the oxygen evolution reaction (OER) is essential for upcoming renewable and clean energy systems. Here, 3D ternary nickel iron phosphide microflowers with a hierarchically porous morphology directly grown on Ni foam via a successive hydrothermal and phosphidation method are synthesized. Benefitting from their unique 3D hierarchical microflower-like structure and the strong electron interactions between Fe, Ni and P, the as-synthesized (NixFe1-x)(2)P catalysts can effectively catalyze the OER with an overpotential of 219 mV at a current density of 20 mA cm(-2) in alkaline media, which is, to the best of our knowledge, the best among the reported non-noble metal-based catalysts.
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